Many astronomical images show galaxies, nebulae and other objects in bright rainbow colors, but these are not the colors we would see if looking at these objects with our eyes, since the light from these objects may not be visible to us. Scientists chose the colors in the image to represent the invisible wavelengths of light. This activity explores the ideas of invisible light and representational color and lets participants create their own representational color map of the temperature of a surface.

Description:

Build a model of the Earth, with its spin-axis, and a lamp as the Sun to demonstrate the concept of seasons.

Goals

--Understanding why we have seasons and the cause of seasonal variation in temperature.
--Learning about how the Earth rotates on a tilted axis compared to its orbit around the Sun.

Learning Objectives

--Students learn about seasons by building a model of the Earth and the Sun, and investigating how sunlight hits the Northern and Southern Hemispheres during different seasons.
--Students explain that the same amount of light hitting the ground heats up a small area more than a large area
--Students show that the angle at which the sunlight hits the Earth influences how much the sunlight heats up the Earth.
Students demonstrate that the angle at which the sunlight hits the Earth is related to the tilt of the Earth’s rotational axis compared to the Earth’s orbit around the Sun.

The students will paint and arrange spheres to form a model of the solar system. They will first make models using the plastic spheres of different sizes. Then they will make similar models using clay, cotton, etc., and organize them in the right order from the Sun.

This activity is based on a reduced-scale model of the Solar System built on a map of a city students are familiar with. This provides them with an understanding of the great distances between the different bodies of the Solar System and their relative size. Students will investigate the characteristics that are required from these bodies to build a scale model using common objects.

What is a star and what shape is it? Students explore both artistic and scientific representations of stars, learn that stars are like the sun but much further away and make their own star hat.

Children love to sing! Star Song is fun, easy to sing, and scientifically accurate!

Street lights of the same type will look brighter when they are close to you, and less bright when they are farther away. The same applies to astronomical objects: a given star will look brighter to a nearby observer than to an observer far away. In both cases, the difference in brightness can be used to deduce the relative distances of suitable objects. Standard candles, objects of constant intrinsic brightness or whose intrinsic brightness can be determined by careful measurements, are a key tool for astronomical distance determination. In this exploration, you will explore standard candles (and also effects that complicate distance measurements) in a simple everyday setting, namely that of street lights, using a digital camera and freely available software.

Students build a model of the Sun-Earth-Moon system, exploring how the Moon revolves around the Earth, and the Earth around the Sun. Students play a memory game and learn some characteristics about the three objects.

Children tell a story about a trip to the beach on a sunny day and investigate ultraviolet (UV) light.

Watch shadows during the course of the day to explore the influence of the Sun’s position in the sky on them, as well as how they change over the seasons. During the next season, repeat the experiment and note the changes from the previous season. Repeat over a period of one year for each season.

Students use a roll of toiletpaper to understand the size of the solar system.

In this activity, students discuss the notion of time and how time can be measured. They build an hourglass to measure time and test it. This activity will allow students to have a better understanding of time and the instruments that can be used to measure it.

Students investigate three-dimensional objects. They compare what constellations look like when seen from different angles. They make a model of a constellation and look at it from different sides to discover that the relative position of the stars changes depending on our perspective. They understand that stars are not located on the same plane and or the same distance.